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Finding the Fourth Proportional to 100,668.38, 151,002.56 and 26,796.38

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Solution

The fourth proportional to 100,668.38, 151,002.56 and 26,796.38 is: 40,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,668.38 : 151,002.56 = 26,796.38 : x
  2. Step 2: Convert to fraction form
    100,668.38/151,002.56 = 26,796.38/x
  3. Step 3: Cross multiply
    100,668.38x = 151,002.56 × 26,796.38
  4. Step 4: Simplify right side
    100,668.38x = 4,046,321,290.71
  5. Step 5: Solve for x
    x = 4,046,321,290.71/100,668.38
  6. Step 6: Final answer
    x = 40,194.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.